bug#20054: vamp: Dangling .so references

[Taylan Ulrich Bayırlı/Kammer]

(See the first "Dangling .so references" bug report for more
information.)

/gnu/store/qyjv704xl5wd34ffhpmwp7q0kk4w7k51-vamp-2.5/

  
/gnu/store/qyjv704xl5wd34ffhpmwp7q0kk4w7k51-vamp-2.5/lib/libvamp-hostsdk.so.3.5.0
        libgcc_s.so.1 => not found
  /gnu/store/qyjv704xl5wd34ffhpmwp7q0kk4w7k51-vamp-2.5/lib/libvamp-sdk.so.2.5.0
        libgcc_s.so.1 => not found
  
/gnu/store/qyjv704xl5wd34ffhpmwp7q0kk4w7k51-vamp-2.5/lib/vamp/vamp-example-plugins.so
        libgcc_s.so.1 => not found